Water pauly.
Just use the daqua link i posted.
Not pic of 450 but look at ro in pic mine has 3 membrane housings ontop.
Not that big but a bit top heavy
GOOD ADVICE SPRUCR!!
i have 625 ltr tank in parents garage and 16 barrels.
My barrels last 2 days usually and my dad keeps tank topped up;
So by sunday i have a weeks water with barrels.
My dad keeps tank topped up.
Winter can cause problems frozen pipes to garage
But new system is a third quicker than my old ro was at its peak so intrested to see how new one does
This winter.
Lee